ŚVETĀŚVATARA UPANISHAD · 1.5

पञ्चस्रोतोऽम्बुं पञ्चयोन्युग्रवक्त्रां पञ्चप्राणोर्मिं पञ्चबुद्ध्यादिमूलां ।
पञ्चावर्तां पञ्चदुःखौघवेगां पञ्चाशद्भेदां पञ्चपर्वाम् अधीमः ॥

pañcasroto’mbuṃ pañcayonyugravaktrāṃ pañcaprāṇormiṃ pañcabuddhyādimūlāṃ ।
pañcāvartāṃ pañcaduḥkhaughavegāṃ pañcāśadbhedāṃ pañcaparvām adhīmaḥ ॥

We meditate on the river whose water consists of the five streams, which is wild and winding with its five springs, whose waves are the five vital breaths, whose fountain head is the mind, the course of the five kinds of perceptions. It has five whirlpools, its rapids are the five pains; it has fifty kinds of suffering, and five branches.

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)